History
Nishi-Tokorozawa Station opened on 15 April 1915 under the original name Kotesashi Station on the Musashino Railway, the predecessor of the Seibu Ikebukuro Line. The name was switched to Nishi-Tokorozawa on 1 September of the same year. The Sayama Line's 1929 opening made the stop a junction. In April 1979 the platform layout was changed from two island platforms to three platforms serving four tracks to handle traffic for the newly opened Seibu Lions Stadium. A new station building came into use on 5 April 1988. From 1 April 2025 ticket sales moved to an intercom-based remote-attendance system.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The original Kotesashi name lasted only about four-and-a-half months at this site before the rename; a second-generation Kotesashi Station opened at a different location between Nishi-Tokorozawa and Sayamagaoka in November 1970.